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15 lines
874 B
15 lines
874 B
4 months ago
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# Zstd in the Linux Kernel
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This directory contains the scripts needed to transform upstream zstd into the version imported into the kernel. All the transforms are automated and tested by our continuous integration.
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## Upgrading Zstd in the Linux Kernel
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1. `cd` into this directory.
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2. Run `make libzstd` and read the output. Make sure that all the diffs printed and changes made by the script are correct.
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3. Run `make test` and ensure that it passes.
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4. Import zstd into the Linux Kernel `make import LINUX=/path/to/linux/repo`
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5. Inspect the diff for sanity.
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6. Check the Linux Kernel history for zstd. If any patches were made to the kernel version of zstd, but not to upstream zstd, then port them upstream if necessary.
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7. Test the diff. Benchmark if necessary. Make sure to test multiple architectures: At least x86, i386, and arm.
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8. Submit the patch to the LKML.
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